rice seedling Articles

  • Phytotoxicity of methylene blue to rice seedlings

    Methylene blue is widely used in various industrial branches. Due to insufficient treatment, its occurrence in wastewater is frequently detected, which may result in serious environment problems to aquatic organisms. Hydroponic experiments were conducted with rice seedlings (Oryza sativa L. cv. XZX 45) exposed to methylene blue to determine the effective concentration using relative growth rate ...


    By GJESM Journal

  • Varietal differences in the growth of rice seedlings exposed to perchlorate and their antioxidative defense mechanisms

    A hydroponic experiment was conducted to investigate the perchlorate (ClO4‐) phytotoxicity in different rice varieties. Considerable variations were observed when 24 rice varieties were treated with ClO4‐. The shoot height, root length and biomass of most varieties were significantly reduced by ClO4‐. The roots were more sensitive than the shoots. Hierarchical clustering analysis demonstrated ...


    By John Wiley & Sons, Ltd.

  • Lanthanum ions intervened in enzymatic production and elimination of reactive oxygen species in leaves of rice seedlings under cadmium stress

    Rare earth elements (REEs) at proper concentrations were observed to alleviate heavy metal stress. However, the potential mechanisms are not clear. Thus, the present work focused on the mechanisms of lanthanum (La) ions on the generation and elimination of reactive oxygen species (ROS) production in leaves of rice seedlings hydroponically cultivated in 30 µM cadmium chloride (CdCl2) for two ...


    By John Wiley & Sons, Ltd.

  • Turning abandoned rice fields into mangroves

    What do you do when mangroves fail to naturally recolonise abandoned rice fields in one of the most precious mangrove deltas of the world? Pieter van Eijk reports on a recent mission to Western Africa that paves the way for large-scale mangrove recovery through a so-called ‘ecological restoration’ approach. ...


    By Wetlands International

  • Things Should be Noticed during Operating Rice Transplanter

    Start the engine in the following orders: check whether there is full of oil in the engine; open the oil circuit and then open the throttle; check the whether the clutch is separate and the gear shift level is in the neutral position; start the engine. Before planting the rice seedlings, a test should be made to check whether the machine can transplanter the rice according ...


    By Amisy Farming Machinery

  • Dissipation and residues of trifloxystrobin and its metabolite in rice under field conditions

    Residue analysis of trifloxystrobin and its metabolite (CGA 321113) in rice matrices, paddy water, and soil was developed using the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method and high performance liquid chromatography tandem mass spectrometry (HPLC‐MS/MS). The method was used to evaluate the dissipation rate of trifloxystrobin and CGA 321113 in rice seedling, soil, and ...


    By John Wiley & Sons, Ltd.

  • Assessing the necessity of surface-applied preplant nitrogen fertilizer in rice systems

    California rice (Oryza sativa L.) growers typically use two forms of preplant N fertilizer: aqua NH3 applied 7 to 10 cm below the soil surface (subsurface N) and surface-applied N. The rational for applying about 25% of the total N rate to the surface is to provide a readily available N source for young rice seedlings; however no research has been done to verify this. On-farm field studies were ...

  • Triangular transplanting pattern and split nitrogen fertilizer application increase rice yield and nitrogen fertilizer recovery

    Field experiments were conducted to evaluate the effects of improved crop management (OPT) for irrigated rice (Oryza sativa L.) on grain yield and N recovery efficiency in southwestern China. In the OPT treatment, rice seedlings were transplanted in a triangular spatial pattern and the N fertilizer was split, based on the difference between the estimated total N requirement and the soil and ...

  • Precautions before operating the paddy transplanter

    A rice transplanter is a specialized transplanter widely used to plant rice seedlings in the paddy field. The machine can both improve the efficiency and quality of rice transplanting. However some questions are claimed by the clients when using the paddy transplanter and we ...


    By Amisy Farming Machinery

  • Field trial carried out in the ebro valley, Spain case study

    Rice farmers in Spain experience two major problems with their rice crops: After the flooding and fertilisation of the rice fields algal growth rapidly develops and covers the surface of the water in the paddy. This greatly reduces the availability of sunlight received by the seedlings until they have grown above the water level. This results in early stage plant loss which can be severe. The ...


    By Cleveland Biotech Ltd.

  • Arsenic in irrigated paddy soils

    Natural arsenic pollution of drinking water has been reported from over 70 countries world-wide, affecting an estimated 150 million people (Ravenscroft et. al., 2008). About 50 million of these people live in Bangladesh, 30 million in India and 33 million in six other countries of south and south-east Asia. It has recently been recognised that arsenic-contaminated groundwater used for irrigation ...

  • Morphogenic Regulators Baby boom and Wuschel Improve Monocot Transformation

    While transformation of the major monocot crops is currently possible, the process typically remains confined to one or two genotypes per species, often with poor agronomics, and efficiencies that place these methods beyond the reach of most academic laboratories. Here, we report a transformation approach involving overexpression of the maize (Zea mays) Baby boom (Bbm) and maize Wuschel2 (Wus2) ...


    By H Smith Plastics LTD

  • A Breakthrough in Monocot Transformation Methods

    The ability to generate transgenic plants without regard to cultivar or genotype can be considered a holy grail of cereal crop transformation. Despite years of effort, it has been remarkably difficult to develop efficient methods for transformation of cereals. The preferred methods generally involve Agrobacterium-mediated transformation of cultured tissue or immature embryos, followed by callus ...


    By H Smith Plastics LTD

  • A Decade After Asian Tsunami, New Forests Protect the Coast

    The tsunami that struck Indonesia in 2004 obliterated vast areas of Aceh province. But villagers there are using an innovative microcredit scheme to restore mangrove forests and other coastal ecosystems that will serve as a natural barrier against future killer waves and storms. On the day that the Indian Ocean tsunami hit his village a decade ago, fisherman Hajamuddin was at sea. It was ...


    By Wetlands International

  • How three U.S. mini-farms are sowing the seeds of global food security

    Tiny, biointensive operations show smallholder farmers from around the world how they can grow far more food than conventional approaches. Her face shaded by a wide-brimmed straw hat, Olawumi Benedict is cheerfully tending to her “little babies” — kale seedlings growing in shallow wooden flats until they’re hardy enough for transplantation into soil beds. Three miles over ...


    By Ensia

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you